PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

404837Ring Set,piston

Rolls-Royce Marine A/s Dep. Engines-Bergen · NSN 2815-01-314-5710 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-01-314-5710 — this item is cataloged by the U.S. Government under National Stock Number 2815-01-314-5710. Primary manufacturer part number: 404837.
Features
  • Ring Set,piston — FSC 2815
  • 7 verified cross-references
  • Primary manufacturer: Rolls-Royce Marine A/s Dep. Engines-Bergen
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring Set,piston, cataloged under National Stock Number 2815-01-314-5710, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Rolls-Royce Marine A/s Dep. Engines-Bergen. This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing Set,piston
FSC / FSG2815 — No Item Name Available (FSG 28)
ManufacturersRolls-Royce Marine A/s Dep. Engines-Bergen (CAGE N4528); Ulstein Usa Inc (CAGE 0JKF4); Rolls-Royce Marine North America Inc (CAGE 1TH76); Ulstein Bergen A/s (CAGE N0379)
Technical Specifications
ParameterValue
NSN2815-01-314-5710
Primary Part Number404837
Item NameRing Set,piston
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerRolls-Royce Marine A/s Dep. Engines-Bergen
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5950-00-444-3629676862-1 INTERCHANGEABLE
Transformer,power
Raytheon Company Dba Raytheon
5310-00-458-2819 INTERCHANGEABLE
Nut,self-Locking,hexagon
5950-00-646-3425604303 INTERCHANGEABLE
Transformer,power
Lockheed Martin Corporation Div Rms - Mitchel Field
2990-01-154-132314044996 INTERCHANGEABLE
Pipe,exhaust
General Motors Llc Dba General Motors Llc
Cross-Reference Index
Part NumberManufacturer
404837 Rolls-Royce Marine A/s Dep. Engines-Bergen (NOR)
404837 Ulstein Usa Inc (USA)
43941 Ulstein Usa Inc (USA)
422943 Rolls-Royce Marine North America Inc (USA)
404837 Rolls-Royce Marine North America Inc (USA)
404837 Ulstein Bergen A/s (NOR)
43941 Ulstein Bergen A/s (NOR)
Related Parts
5950-00-444-3629INTERCHANGEABLE
TRANSFORMER,POWER
676862-1
5310-00-458-2819INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5950-00-646-3425INTERCHANGEABLE
TRANSFORMER,POWER
604303
2990-01-154-1323INTERCHANGEABLE
PIPE,EXHAUST
14044996

Frequently Asked Questions

What is NSN 2815-01-314-5710?

NSN 2815-01-314-5710 is a Ring Set,piston, manufactured by Rolls-Royce Marine A/s Dep. Engines-Bergen, classified under FSC 2815 (No Item Name Available). Status: active.

What are the part numbers for NSN 2815-01-314-5710?

NSN 2815-01-314-5710 has 7 cross-referenced part numbers: 404837 (Rolls-Royce Marine A/s Dep. Engines-Bergen), 404837 (Ulstein Usa Inc), 43941 (Ulstein Usa Inc), 422943 (Rolls-Royce Marine North America Inc), 404837 (Rolls-Royce Marine North America Inc) and 2 more.

What NSN replaces 2815-01-314-5710?

There are 4 known substitutes for 2815-01-314-5710: 5950-00-444-3629, 5310-00-458-2819, 5950-00-646-3425 and 1 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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